Answer:
x-3 and y=2
Step-by-step explanation:
Answer is
= 1.24*5+1.1*2.20+4.5*0.68
= <u>11.68</u>
Answer:
The standard deviation of the set is: 1.5
Step-by-step explanation:
The actual standard deviation is 1.58... but to 1 decimal place it's 1.5
Answer: Sample statistics are used to make inferences about population parameters.
Step-by-step explanation:
A number which describes a population is called a parameter, such as a proportion or percentage.
A statistic is a number which may be calculated from the data observed in a random sample without demanding the use of any unknown parameters.
The mean and variance of a population are population parameters.
Thus, fourth statement is the right answer "Sample statistics are used to make inferences about population parameters."
Answer:
the inverse is f
−
1
(
x
)
=
√
−
x
3
−
1
,
−
√
−
x
3
−
1
Step-by-step explanation:
